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The SPMC at S-EL2 manages S-EL1 execution contexts for SPs. The
currently running SP vCPU state is always saved when the SPMC exits to
SPMD. A fresh vCPU context is always restored when the SPMC is entered
from the SPMD and a SP resumed. For performance optimization reasons
this permits omitting the saving/restoring of the S-EL1 context from
within the EL3 SPMD on entering/exiting the SPMC. The S-EL2 SPMC and
NS-EL1 context save/restore remain done in the SPMD.
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I66413ed5983913791ff5c9fc03c590ee65c6ccd7

Fix a remainder from early prototyping. OP-TEE as a secure partition
does not need specific SMC function id pass through to EL3.
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I2843d1b9a5eb4c966f82790e1655fb569c2de7d4

Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: Id610f7e4398e799a2fbd74861274fd684c32db53

Macros PLAT_MARVELL_BOOT_UART* and PLAT_MARVELL_CRASH_UART* are defined
to same values. De-duplicate them into PLAT_MARVELL_UART* macros.
Signed-off-by: Pali Rohár <pali@kernel.org>
Change-Id: Iae5daf7cad6a971e6f3dbe561df3d0174106ca7f

Macros PLAT_MARVELL_BL31_RUN_UART* are not used since commit
d7c4420c

 ("plat/marvell: Migrate to multi-console API").

Remove them.
Signed-off-by: Pali Rohár <pali@kernel.org>
Change-Id: I5ec959ef4de87dcfb332c017ad2599bf8af6ffc3

When configuring the UART_BAUD_REG register, the function
console_a3700_core_init() currently only changes the baud divisor field,
leaving other fields to their previous value.

This is incorrect, because the baud divisor is computed with the
assumption that the parent clock rate is 25 MHz, and since the other
fields in this register configure the parent clock, which could have
been changed by U-Boot or Linux.

Fix this function to also configure the other fields so that the UART
parent clock is selected to be the xtal clock.

For example without this change TF-A prints only

    ERROR: a3700_system_off needs to be implemented

followed by garbage after plat_crash_console_init() is called.

After applying this change instead of garbage it also print crash info:

    PANIC at PC : 0x0000000004023800
Signed-off-by: Pali Rohár <pali@kernel.org>
Change-Id: I72f338355cc60d939b8bb978d9c7fdd576416b81

Merge "fix(plat/marvell/a3720/uart): fix UART clock rate value and divisor calculation" into integration

Morello exhibits the behavior similar to Juno wherein CNTBaseN.CNTFRQ
can be written but does not reflect the value of the CNTFRQ register
in CNTCTLBase frame. This doesn't follow ARM ARM in that the value
updated in CNTCTLBase.CNTFRQ is not reflected in CNTBaseN.CNTFRQ.

Hence enable the workaround (applied to Juno) for Morello that updates
the CNTFRQ register in the Non Secure CNTBaseN frame.

Change-Id: Iabe53bf3c25152052107e08321323e4bde5fbef4
Signed-off-by: Manoj Kumar <manoj.kumar3@arm.com>

Add support for XCK26 silicon which is available on SOM board.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
Change-Id: Ic98213328702903af8a79f487a2868f3e6d60338

This patch renames the Matterhorn, Matterhorn ELP, and Klein CPUs to
Cortex A710, Cortex X2, and Cortex A510 respectively.
Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: I056d3114210db71c2840a24562b51caf2546e195

UART parent clock is by default the platform's xtal clock, which is
25 MHz.

The value defined in the driver, though, is 25.8048 MHz. This is a hack
for the suboptimal divisor calculation
  Divisor = UART clock / (16 * baudrate)
which does not use rounding division, resulting in a suboptimal value
for divisor if the correct parent clock rate was used.

Change the code for divisor calculation to
  Divisor = Round(UART clock / (16 * baudrate))
and change the parent clock rate value to 25 MHz.

The final UART divisor for default baudrate 115200 is not affected by
this change.

(Note that the parent clock rate should not be defined via a macro,
since the xtal clock can also be 40 MHz. This is outside of the scope of
this fix, though.)
Signed-off-by: Pali Rohár <pali@kernel.org>
Change-Id: Iaa401173df87aec94f2dd1b38a90fb6ed0bf0ec6

* changes:
  TF-A: Document SMC_PCI_SUPPORT option
  SMCCC/PCI: Handle std svc boilerplate
  SMCCC/PCI: Add initial PCI conduit definitions
  SMCCC: Hoist SMC_32 sanitization

The SGI/RD platforms have been using PSCI state ID format as defined in
PSCI version prior to 1.0. This is being changed and the PSCI extended
state ID format as defined in PSCI version 1.1 is being adapted. In
addition to this, the use of Arm recommended PSCI state ID encoding is
enabled as well.

Change-Id: I2be8a9820987a96b23f4281563b6fa22db48fa5f
Signed-off-by: Pranav Madhu <pranav.madhu@arm.com>

Update idle flow in case of last read command timeout.
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Change-Id: Idb0552d70d59b23822c38269d0fa9fe9ac0d6975

* changes:
  feat(plat/mediatek/apu): add mt8192 APU device apc driver
  feat(plat/mediatek/apu): add mt8192 APU SiP call support
  feat(plat/mediatek/apu): add mt8192 APU iommap regions
  feat(plat/mediatek/apu): setup mt8192 APU_S_S_4 and APU_S_S_5 permission

Add APU device apc driver and setup permission.
Signed-off-by: Flora Fu <flora.fu@mediatek.com>
Change-Id: I2bbdb69d11267e4252b2138b5c5ac8faf752740f

Add APU SiP call support for start/stop mcu.
Signed-off-by: Flora Fu <flora.fu@mediatek.com>
Change-Id: Ibf93d8ccf22c414de3093cee9e13f7668588f69e
Signed-off-by: Pi-Cheng Chen <pi-cheng.chen@mediatek.com>

MTK display port mute/unmute control registers need to be
set in secure world.
Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Change-Id: Iec73650e937bd20e25c18fa28d55ae29e68b10d3

Two issues in documentation were identified after the release.
This patch fixes these typos.

1. Matternhorn ELP CPU was made available through v2.5 release, not
   Matternhorn CPU
2. We had upgraded TF-A to use GCC 10.2 toolchain family and used this
   toolchain for release testing

Change-Id: I33e59bb5a6d13f4d40dbb3352004d5b133431d65
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>

Use proper offset for IPI data based on offset for IPI0
channel.
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Abhyuday Godhasara <abhyuday.godhasara@xilinx.com>
Change-Id: I3070517944dd353c3733aa595df0da030127751a

Add some basic documentation and pointers for the SMCCC PCI
build options.
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Change-Id: Ia35f31d15066ea74135367cde2dce2f26e6ab31e

Add SMC wrappers for handshaking the existence
and basic parameter validation for the SMCCC/PCI
API. The actual read/write/segment validation is
implemented by a given platform which will enable
the API by defining SMC_PCI_SUPPORT.
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Change-Id: I4485ad0fe6003cec6f5eedef688914d100513c21

Add constants, structures and build definition for the
new standard SMCCC PCI conduit. These are documented
in DEN0115A.

https://developer.arm.com/documentation/den0115/latest

Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Change-Id: If667800a26b9ae88626e8d895674c9c2e8c09658

The SMCCC, part 3 indicates that only the bottom
32-bits of a 32-bit SMC call are valid. The upper
bits must be zero. Lets enforce that so standard
service code can assume its been called that way.
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Change-Id: I1bac50fbdc3b6ddca5fe2d1d1f96166a65ac4eb4

Add APU iommap settings for reviser, apu_ao and
devapc control wrapper.
Signed-off-by: Flora Fu <flora.fu@mediatek.com>
Change-Id: Ie8e6a197c0f440f9e4ee8101202283a2dbf501a6

Setup APU_S_S_4/APU_S_S_5 permission as SEC_RW_ONLY.
Signed-off-by: Flora Fu <flora.fu@mediatek.com>
Change-Id: I6c50b2913bf34270a1b0ffaf0e0c435fee192a4c